Antonia Gräfin von Hatzfeldt 26 Sep 1856 Libochowitz - 21 Dec 1933 Wien (1856–1933) Parents Alfred, 1st Prince of Hatzfeldt-Wildenburg Gabriele von Dietrichstein-Proskau-Leslie Children Count Michael Karl Althann Siblings Franz von Hatzfeldt-Wildenburg Partners Robert von Althann